1969 C10 original 307 engine question

[dondb]

bought a 1969 C-10 LB step Side a couple of years back. I rebuild the underneath, and lowered it along with new power disc breaks. Oh...and it's a 3 on the tree which I love. Anyway, I totally ruptured my achillies tendon 11 weeks ago and just getting around in a boot. It's hell to get old...I know. I finally made it out to my shop and decides to clean up the engine bay. I removed the Rochester 2GV carburetor to rebuild....removed the ram horn exhaust manifolds and found oil coming out of the 2 rear bolt holes? Is this a problem?? I have new Ram horns and new exhaust system to go in and was going to remove the intake manifold to clean and paint. Mind you I think a main seal needs replacing and oil pan gasket, so pretty good amount of oil under there. Looking on this site I'm almost thinking L31 replacement from Jegs....but am also reluctant to replace engine as it runs pretty damn good. Really need help on oil out of Manifold bolt holes or a kick over the fence to replace engine.....questions are good Thanks for any responses... bored no driving the last 11 weeks and getting back on my feet and into my truck for the summer hopefully?